Huvitz HRK-9000A User Manual
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Huvitz HRK-9000A User Manual

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Summary of Contents for Huvitz HRK-9000A

  • Page 1 User Manual Auto Ref/Keratometer HRK-9000A...
  • Page 2 Huvitz has the right to make any kind of modification to this product or product specs anytime without prior notice and modification may not be renewed on this document.

  • Page 3: Table Of Contents

    2 HRK-9000A User Manual -------------------------------------- Table of Contents Introduction ......................5 1.1. Outline of the instrument ...................5 1.2. Classification .......................6 Information regarding safety ...................7 2.1. Introduction ......................7 2.2. Safety symbols ....................8 2.3. Environment related matters ................11 2.4. Safety Precaution ....................13 Characteristics ......................
  • Page 4 ------------------------------------- HRK-9000A User Manual 3 8.2.1. Manual measurement mode ..............44 8.2.2. Automatic measurement mode ............... 47 8.3. Continuous corneal curvature / refractive power measurement mode (K&R mode) 48 8.3.1. Manual measurement mode ..............48 8.3.2. Automatic measurement mode ............... 51 8.3.3.
  • Page 5 4 HRK-9000A User Manual -------------------------------------- 9.5. Power saving function ..................110 10. Self-diagnosis and maintenance/repair ............... 111 10.1 Prior to calling a serviceman ................111 10.2. Replacing ....................... 114 10.2.1. Printer page ..................114 10.2.2. Slip page ..................... 115 10.3. Equipment cleansing ..................116 10.4.

  • Page 6: Introduction

    1. Introduction 1.1. Outline of the instrument Automatic eye examination refractive power measurement device, HRK-9000A is the equipment that measures refractive power of the test subject’s eyeball to show Sphere (SPH), Cylinder (CYL) and Axis (AXS) information. Moreover, it can measure test subject’s corneal curvature and PD (Purpillary Distance, distance between pupils) and...

  • Page 7: Classification

    6 HRK-9000A User Manual -------------------------------------- provided to facilitate adjustment of the chin rest’s height, up and down. 1.2. Classification Classification Under the Provision if 93/42/EEC (MDD): Class Im  Protection Against Electrical Shock: Class I  Applied Parts: Type B applied parts. (Chinrest Paper, Forehead rest) ...

  • Page 8: Information Regarding Safety

    ------------------------------------- HRK-9000A User Manual 7 2. Information regarding safety 2.1. Introduction Safety is everyone’s obligation and responsibility. Safe use of this device is important for everyone involved - installers, users, operators and device managers. It is a must to study and to master this user manual individually prior to installing, using, cleaning, repairing or controlling this device and its accessories.

  • Page 9: Safety Symbols

    8 HRK-9000A User Manual -------------------------------------- 2.2. Safety symbols The International Electro technical Commission (IEC) announced the symbols that warn when connecting electric medical device’s power or that warn against calamity that may occur. Classification and symbol are as follows. European Conformity...
  • Page 10 ------------------------------------- HRK-9000A User Manual 9 Indicates signal input and output connection. This symbol indicates safety precautions. Understand the related precautions thoroughly after reading the manual prior to using the device. Consult instructions for use. Indicates safety grounding point connected to the device’s sash.
  • Page 11 10 HRK-9000A User Manual -------------------------------------- This side up Fragile , handle with care Do not use hand hooks Keep DRY Stacking Limit by Number Keep away from sunlight Huvitz Symbol...

  • Page 12: Environment Related Matters

    ------------------------------------- HRK-9000A User Manual 11 2.3. Environment related matters Avoid the following environment for operation and storage: Place where device comes directly into contact with moisture (do not operate the device with wet hand) Place where device is exposed directly to sunlight.
  • Page 13 12 HRK-9000A User Manual -------------------------------------- Avoid placing the device where it may come into contact with chemical substance or place where there is flammable gas Be careful so that dust or metallic substance does not go into the inside of this device.

  • Page 14: Safety Precaution

    Device management by customer should be carried out as explained in the user or service manual. Management that requires more sophisticated skill set can be carried out only by Huvitz’s service technician or a person with comparable qualifications. Manufacturer assumes responsibility for this device’s safety, reliability and...
  • Page 15 This device is utilized with the accessories provided by Huvitz. If consumer wants to use other manufacturers’ accessories, safety of use must be proven and confirmed by Huvitz or by the accessories’ manufacturer.
  • Page 16 ------------------------------------- HRK-9000A User Manual 15 17. IEC standard needs to be satisfied with in order to connect an outside device with input/output signal or other connector. (IT equipment is IEC 60950, and electric equipment for medical use is IEC 60601). Moreover, all the systems need to satisfy the safety requirement, IEC 60601-1-1 when it comes to the electric system for medical use.
  • Page 17 16 HRK-9000A User Manual -------------------------------------- CAUTION For use of equipment in rated voltage less than 125Vac,minimum 6A,Type SJT or SVT , 18/3AWG,10A, max 3.0m long : One end with Hospital Grade Type, NEMA 5-15P Other end with appliance coupler. For use of equipment in rated voltage less than 250Vac,minimum 6A,Type SJT or SVT , 18/3AWG,10A, max 3.0m long :...

  • Page 18: Characteristics

    ------------------------------------- HRK-9000A User Manual 17 3. Characteristics It is possible to carry out both refractive power and corneal curvature measurement with one machine. It is possible to measure even the myopia since the refractive power measurement range is very broad ranging from –30 D to +25 D.

  • Page 19: Precautions During Use

    Then, move by lifting up with lower part of the body with both hands. When HRK-9000A is not used for a long time, separate the power and cover it with the dust cover. 10. When using this equipment under normal state, then the proper location is as...
  • Page 20 ------------------------------------- HRK-9000A User Manual 19...

  • Page 21: Name And Function Of Each Part

    20 HRK-9000A User Manual -------------------------------------- Name and function of each part 5.1. Key part ④ ① ⑤ ⑥ ⑦ ② ⑧ ③ ⑨ [Figure 5-1. Front part] 1. Height arrangement sign: indicates the height that the test subject’s eyes should be placed 2.
  • Page 22 ------------------------------------- HRK-9000A User Manual 21 ① ② ③ ④ [Figure 5-2. Back part] 1. Forehead support stand: location for placing the forehead to prevent test subject from moving the face (Type B attachment part) 2. Measurement object lens: object lens for measuring the image that is formed in the eye retina 3.
  • Page 23 22 HRK-9000A User Manual -------------------------------------- ① ② ③ ④ ⑤ ⑥ [Figure 5-3. Lower part] 1. Clamping bolt: Fixate system stage 2. Power supply socket: Socket that connects with the outside power plug 3. Fuse holder: 250V T3.15AL 4. USB connector: Connector for connecting the USB connector for communication 5.

  • Page 24: Main Measurement Screen Button Explanation

    ------------------------------------- HRK-9000A User Manual 23 5.2. Main measurement screen button explanation ⑧ ① ② ③ ⑦ ④ ⑤ ⑥ [Figure 5-4. Front part’s switch] (MODE) button: Main measurement mode Button for modifying (REF, KER, K&R, KER-P, CLBC). (MANUAL) button: Button for selecting whether to carry out automatic...
  • Page 25 24 HRK-9000A User Manual -------------------------------------- (ACCOMODATION) button: Button for converting the screen to the mode for measuring accommodation force (MENU) button: Button for outputting the menu for converting to other measurement mode (COLOR VIEW, SIZE, VIRTUAL COMPARISON, ZERNIKE, RETRO-ILLUMINATION, TFBUT, MEIBO, DISPLAY MODE) (SETUP) button: Button for converting to the user SETUP screen.

  • Page 26: Equipment Installation And Preparation For Measurement

    UNLOCK direction. [Figure 6-1. Unlocking stage part’s lock 2. Access to the power cable - Place HRK-9000A on a table. - Put in the power cable into the power connector at the main body’s lower part. - Check to see whether the main body’s power is turned off, and put in the power plug into the AC socket.
  • Page 27 Normally, equipment that gets connected to this eye examination device include the PC that has Huvitz’s digital reflector, lens meter and software for management provided by a third party built-in. As for the connection and communication setting method, it may be different depending on the equipment that gets connected.
  • Page 28 ------------------------------------- HRK-9000A User Manual 27...

  • Page 29: Practical Training Via Model Eye

    28 HRK-9000A User Manual -------------------------------------- 7. Practical training via Model Eye 1. Turning the main body’s power ON - Connect the power code appropriately as shown on the diagram on the side. - Turn on the power switch. - Axis measurement screen appears when system check is completed.
  • Page 30 ------------------------------------- HRK-9000A User Manual 29 4. Convert to K&R, REF mode. If the current measurement mode is not set as “K&R” or “REF” on the monitor, change the mode setting so that the device can operate with one of the two.
  • Page 31 30 HRK-9000A User Manual -------------------------------------- State that close to the eyes Location of accurate focus State that is too far from the eyes...
  • Page 32 ------------------------------------- HRK-9000A User Manual 31 <Focusing Indicator> 외곽 안쪽 arrangement arrangement 링 링 [Figure 7-4. Measurement location and focusing] 6. Measurement Manual measurement ① Carries out measurement location and focusing process for Model Eye. ② Press on the measurement switch. If measurement does not take place while the TRY AGAIN message gets output on the screen’s lower part once...
  • Page 33 32 HRK-9000A User Manual -------------------------------------- Automatic measurement Set as AUTO mode by pressing on the MANUAL button located at the ① monitor’s lower part. Carry out measurement location and focusing process for Model Eye. ② Outer side arrangement ring and Mire Ring become the concentric circle, ③...

  • Page 34: Measurement

    WARNING When the following type of situation results, turn off the power switch immediately. Then, contact the Huvitz’s distributor after pulling out the power code from the AC power connection part. - When smoke is detected from the equipment or when strange smell or sound is heard.

  • Page 35: Refractive Power Measurement Mode (Ref Mode)

    34 HRK-9000A User Manual -------------------------------------- 8.1. Refractive power measurement mode (REF mode) This is the mode that measures refractive power by itself. - REF mode selection: Set in a way that the measurement mode indicator section on the screen turns into “REF” mode.

  • Page 36: Manual Measurement Mode

    ------------------------------------- HRK-9000A User Manual 35 8.1.1. Manual measurement mode Mode gets converted to manual measurement mode when you press on the Auto button while in the automatic measurement mode. It is possible to stop automatic measurement function when “Auto Measurement”...
  • Page 37 36 HRK-9000A User Manual -------------------------------------- Measurement location and focusing ② CAUTION - Do not place your hand or finger in between stage and Base. Moreover, avoid having the test subject place his or her hand or finger either. Hand or finger may get injured.
  • Page 38 ------------------------------------- HRK-9000A User Manual 37 Outer arrangement ring (Minimum pupilloscope Φ 2.0mm) Pupil Iris Manual/automatic [Figure 8-1-3. REF manual measurement mode screen] NOTE - If trying to adjust by leaning the operation lever is not sufficient, adjust by pushing the stage to the front, back, left and right.
  • Page 39 38 HRK-9000A User Manual -------------------------------------- - Measurement result is indicated on the monitor when measurement is completed. - Previous measurement result is indicated when carrying out continuous measurement. Repetitive measurement ④ - Measure repeatedly according to need. - The latest measurement value is indicated every time measurement takes place.
  • Page 40 ------------------------------------- HRK-9000A User Manual 39 Distance between pupils [Figure 8-1-4. Screen indicating distance between pupils] Printing ⑥ - Print measurement result by pressing on the print button. - Contents selected from the user Setup mode get printed. (Refer to “user Setup mode”...
  • Page 41 40 HRK-9000A User Manual -------------------------------------- [Figure 8-1-5. Example of a printed page]...

  • Page 42: Automatic Measurement Mode

    ------------------------------------- HRK-9000A User Manual 41 8.1.2. Automatic measurement mode The mode gets converted to automatic measurement mode when MANUAL button is pressed on while in the manual measurement mode. While in the automatic measurement mode, measurement is carried out automatically even when the measurement button is not pressed on when the state reaches a state in which arrangement in the device and measurement is realized effectively.
  • Page 43 42 HRK-9000A User Manual -------------------------------------- [Figure 8-1-6. REF automatic measurement mode indicator screen] Measurement of the other eye. ③ - Move the stage to the right side to measure the left eye using the same procedure. - When the measurement of the two eyes is complete, PD value is indicated on the monitor screen automatically.
  • Page 44 ------------------------------------- HRK-9000A User Manual 43 Refer to the following explanation when you see TRY AGAIN. When TRY AGAIN message Measures appears Arrange the pupil’s location more accurately, Defective location fitting and measure When eyelids inner Measure by asking the test subject to open the eyelashes block the pupil eyes wide, or by pushing up the upper eyelids.

  • Page 45: Corneal Curvature Measurement Mode (Ker Mode)

    44 HRK-9000A User Manual -------------------------------------- 8.2. Corneal curvature measurement mode (KER mode) This is the mode for measuring the radius of cornea’s curvature on its own. Do not measure the hard contact lens’ base curve in this mode. Refer to the CLBC mode of the Clause 8.5 for the hard contact lens’...
  • Page 46 ------------------------------------- HRK-9000A User Manual 45 Iris Pupil Outer line arrangement ring (minimum Φ pupilloscope 2.0mm) [Figure 8-2-1. KER mode indicator screen] Carry out the process using the same process as that of the (repetitive ③ measurement), (measurement of the opposite eyes) in the 8.1.1 refractive power measurement mode.
  • Page 47 46 HRK-9000A User Manual -------------------------------------- [Figure 8-2-2. Example of a printed page]...

  • Page 48: Automatic Measurement Mode

    ------------------------------------- HRK-9000A User Manual 47 8.2.2. Automatic measurement mode The mode gets converted to automatic measurement mode when MANUAL button is pressed on while in the manual measurement mode. In case of automatic measurement mode, when the state reaches a state in which the arrangement in the device and measurement is realized effectively, measurement takes place automatically even when the measurement button is not pressed on.

  • Page 49: Mode)

    48 HRK-9000A User Manual -------------------------------------- 8.3. Continuous corneal curvature / refractive power measurement mode (K&R mode) This is the mode for carrying out the corneal curvature measurement and refractive power measurement continuously. - K&R mode selection: Set so that the measurement mode indicator section on the screen becomes “K&R”...
  • Page 50 ------------------------------------- HRK-9000A User Manual 49 Iris Pupil Mire Ring arrange ment 링 [Figure 8-3-1. K&R mode indicator screen] Operation process that is the same as that of the (repetitive measurement), ③ (measurement of the opposite eyes) was executed in the 8.1.1 refractive power measurement mode.
  • Page 51 50 HRK-9000A User Manual -------------------------------------- [Figure 8-3-2. Example of a printed page]...

  • Page 52: Automatic Measurement Mode

    ------------------------------------- HRK-9000A User Manual 51 Screen indication format selection ⑤ - It is possible to designate symbol of astigmatism refractive power in the measurement mode that includes refractive power measurement. It is possible to designate in the user Setup mode. Moreover, it is possible to indicate Refractive power’s measurement data following VD value in the measurement...

  • Page 53: All Kinds Of Markings

    52 HRK-9000A User Manual -------------------------------------- 8.3.3. All kinds of markings Denominat Symbol’s Coping meaning method indicates reliability measurem measurem reliability ent value spherical measurem prescriptio ent range n exceeds exceeded Curve +25 D measurem spherical measurem prescriptio impossible ent range...

  • Page 54: Peripheral Corneal Measurement (Ker-P Mode)

    ------------------------------------- HRK-9000A User Manual 53 8.4. Peripheral Corneal measurement (KER-P mode) This is the mode that measures cornea’s center and periphery curvature separately. Periphery curvature is measured at the locations toward the up and down left and right direction using the cornea’s center as the standard. Relative eccentricity is shown by comparing periphery curvature with the cornea center’s curvature.
  • Page 55 54 HRK-9000A User Manual -------------------------------------- [Figure 8-4-1. KER-P mode indicator screen] Contents indicated on the screen when measuring cornea’s center R1: Curvature (major axis) at the cornea center R2: Curvature (minor axis) at the cornea center AX: Axis direction of the cornea center curved surface HEC: Eccentricity of the overall eyeball’s horizontal direction...
  • Page 56 ------------------------------------- HRK-9000A User Manual 55 measured currently gets flickered. Periphery direction Superior (SUP): Upper side from the cornea’s center Inferior (INF): Lower side from the cornea’s center Temple (TEM): Towards the temple of the person subjected to measurement from the cornea’s center Nasal (NAS): Towards the nose of the person subjected to measurement from the cornea’s center...
  • Page 57 56 HRK-9000A User Manual -------------------------------------- [Figure 8-4-2. KER-P mode measurement screen] Contents indicated on the screen when measuring Peripheral Corneal (SUP, INF, TEM, and NAS) R1: Curvature (major axis) at the Peripheral Corneal R2: Curvature (minor axis) at the Peripheral Corneal...

  • Page 58: Contact Lens' Base Curve Measurement (Clbc Mode)

    ------------------------------------- HRK-9000A User Manual 57 8.5. Contact lens’ base curve measurement (CLBC mode) This is the ode for measuring contact lens’ base curve (dented side). - CLBC mode selection: Set so that the measurement mode indicator section on the screen becomes “CLBC” mode.
  • Page 59 58 HRK-9000A User Manual -------------------------------------- [Figure 8-5-2. Model Eye attachment] Location and focusing ③ - Push the operation level to the front slowly and turn it, so that the Mire Ring comes to the center of the outer side arrangement ring.
  • Page 60 ------------------------------------- HRK-9000A User Manual 59 [Figure 8-5-3. CLBC mode indicator screen] Categories for the information that is indicated on the screen are as follows. R1: Curvature (major axis) at the contact lens center R2: Curvature (minor axis) at the contact lens center...

  • Page 61: Other Mode

    60 HRK-9000A User Manual -------------------------------------- 9. Other mode 9.1. Visual Acuity Test mode Visual Acuity test mode is the mode that enables testing of the current eyesight and corrected eyesight based on the test subject’s refractive power measurement result by using the chart that can be observed at the device’s inside. Accurate testing is made possible since the chart at the device’s inside is observed and tested with the...
  • Page 62 ------------------------------------- HRK-9000A User Manual 61 [Figure 9-1-1. VA test mode screen] Categories of the buttons that are indicated on the screen are as follows. : Set up the chart type as the alphabet type. : Set up the chart type as the Landolt type.

  • Page 63: Accommodation Test Mode (Accommodation Force)

    62 HRK-9000A User Manual -------------------------------------- than the present state. 9.2. Accommodation Test mode (accommodation force) Accommodation Test mode is the mode that tests accommodation force. Measure current location, measurement frequency and accommodation force while moving the chart. [Figure 9-2-1. Accommodation Test mode screen]...
  • Page 64 ------------------------------------- HRK-9000A User Manual 63 Start the accommodation force test by pressing on the joystick button while ③ the focus in properly adjusted. Current location (TPOS), measurement frequency (TIME) and accommodation ④ force (ACCV) are updated while chart moves during the accommodation force test, and measured refractive power is indicated on the screen on a real-time basis with graph.

  • Page 65: Other Menu Mode

    64 HRK-9000A User Manual -------------------------------------- 9.3. Other menu mode It is possible to convert to other mode by pressing on the button in the main measurement mode. Press on the button in all other modes to end the current mode and to return to the main measurement mode.
  • Page 66 ------------------------------------- HRK-9000A User Manual 65 [Figure 9-3-1. Color View mode indicator screen] Categories for the buttons that are indicated on the screen are as follows. : Select Yellow Filter mode ON/OFF. : Select White LED mode ON/OFF. : Select Blue LED mode ON/OFF.
  • Page 67 66 HRK-9000A User Manual -------------------------------------- : Button that increases stage of LED’s brightness by one step Press on the button in the main measurement mode so that the ① COLOR VIEW MODE measurement screen appears as shown on the figure when the COLOR button is pressed on.
  • Page 68 ------------------------------------- HRK-9000A User Manual 67 This is the function for observing the contact lens Fitting degree more clearly. 1. Press on the button in the Color view mode. 2. Use button and button to adjust LED’s brightness. Then, observe contact lens Fitting degree.
  • Page 69 68 HRK-9000A User Manual -------------------------------------- This is the function that uses White LED illumination to observe with color image. [Figure 9-3-1-2. Color View mode indicator screen (White LED)] 9.3.1.3. Blue LED This is the function that observes cornea and contact lens Fitting degree by using fluorescence solution and Blue LED.
  • Page 70 ------------------------------------- HRK-9000A User Manual 69 2. Press on the button in the Color view mode, and use the operation lever to adjust eyes’ location and focus. 3. Use button and button to adjust the Blue LED’s brightness, and observe contact lens Fitting degree.
  • Page 71 70 HRK-9000A User Manual -------------------------------------- button (joystick) in the Color View mode. Press on the button to output filmed images on up to four screens on the DISPLAY screen. [Figure 9-3-1-4. Color View mode - capture screen] 9.3.1.6. Capture image viewing screen...
  • Page 72 ------------------------------------- HRK-9000A User Manual 71 [Figure 9-3-1-5 Color View mode – captured image selection screen] : Emphasizes the green of the measurement image. (It is possible to check the distribution state of the fluorescence solution easily by indicating after emphasizing the green color of the measured image.)
  • Page 73 72 HRK-9000A User Manual -------------------------------------- points of the angle to be measured.) : Measures length. (Measures length by touching the screen with two points at the ends of the two sides when it comes to the length to be measured.)
  • Page 74 ------------------------------------- HRK-9000A User Manual 73 : Indicates contact lens fitting state. (Automatically discerns out in stages whether cornea’s curvature and contact lens’ curvature is flat, normal or steep to indicate on the screen.)
  • Page 75 74 HRK-9000A User Manual -------------------------------------- [Figure 9-3-1-6. Flat, Normal, Steep icon screen] : Returning to the original state. (Returns all that was indicated to the original state.) ⇒...

  • Page 76: Size Mode (Pupil Diameter Measurement)

    ------------------------------------- HRK-9000A User Manual 75 9.3.2. SIZE mode (pupil diameter measurement) This is the mode that measures pupil’s diameter. 1. Press on the button in the main measurement mode. Then, SIZE mode gets selected when the SIZE button is pressed on.
  • Page 77 76 HRK-9000A User Manual -------------------------------------- Left Iris Vertica Pupil l bar Cornea Border Button to move the left Button to move the right Indicates measurement vertical bar vertical bar and average values [Figure 9-3-2-2. Size mode indication screen (2)] 4. Measurement location and focusing - Ask the test subject to watch fixating target at the inside.

  • Page 78: Zernike Mode

    ------------------------------------- HRK-9000A User Manual 77 - Left button and button adjust the movement of the left bar while button of the right side button adjust the movement of the right side bar. - Measurement value is indicated on the monitor.
  • Page 79 78 HRK-9000A User Manual -------------------------------------- (aberrations) that is measured from the test subject with myopia or hyperopia using the Wave-front as the standard when it is at the emmetropia. After measuring the refractive power in the REF or K&R mode, press on the ZMODE button of the button to convert to Zernike mode.
  • Page 80 ------------------------------------- HRK-9000A User Manual 79 expressed with colors. Information on the measurement domain is indicated on the screen’s lower part. Result calculated on the pupil’s narrow domain, wide domain is indicated separately on the left and right sides. - Pupil : measurement domain.
  • Page 81 80 HRK-9000A User Manual -------------------------------------- [Figure 9-3-4-3. Zernike mode screen (Map) – High order] Graph on the left side of the screen indicated degree of Wave-front aberrations in the pupil domain in colors. Emmetropia, hyperopia and myopia are expressed in green, blue and red, respectively.
  • Page 82 ------------------------------------- HRK-9000A User Manual 81 aberrations) - RMS (Low) : Low order aberrations’ average - RMS (High) : High order aberrations’ average Graph gets amplified into the entire screen when you press on the “+” button at the lower part of the graph’s right side, and the image returns to the original image when you press on the “-“...
  • Page 83 82 HRK-9000A User Manual -------------------------------------- : PSF image PSF Image is indicated on the screen’s left side to make it easy to know how light of the point shape forms at the retina based on the measured refractive power, and it is indicated on the right side how visual target for testing gets twisted in order to help understand.
  • Page 84 ------------------------------------- HRK-9000A User Manual 83 : Lattice type of chart : Radiation type of chart : ETDRS chart 9.3.3.2. Screen conversion When the stage is moved to the left and right using operation lever, graph, Zernike coefficients and PSF image get converted to the results that are gained from the...

  • Page 85: Retro-Illumination Mode

    84 HRK-9000A User Manual -------------------------------------- [Figure 9-3-4-6. Zernike mode (Map, PSF image) screen conversion] 9.3.4. RETRO-ILLUMINATION mode Retro-Illumination mode is the mode that can observe eye lens by using Retro- illumination method. It is possible to observe eye lens’ state by observing the shape of the light that is reflected from the retina while changing the brightness of the light that is radiated onto the eyes through illumination.
  • Page 86 ------------------------------------- HRK-9000A User Manual 85 pressed on after pressing on the button. (Eye height adjustment), (measurement location and focusing) process is ② carried out using the method that is the same as that of the 8.1.1 refractive power measurement mode.
  • Page 87 86 HRK-9000A User Manual -------------------------------------- the screen. Measurement screen show on the screen along with the Retro- illumination image by measuring eyes’ refractive power, astigmatism도 and astigmatism각 continually at the current location. [Figure 9-3-4-2. Retro-Illumination measurement screen] Buttons of the Retro-Illumination mode that are indicated on the screen are as follows.
  • Page 88 ------------------------------------- HRK-9000A User Manual 87 : Button for increasing illumination’s brightness 9.3.4.2. Retro-Illumination observation Adjusts brightness of the LED for refractive power measurement ① - To see the image clearly, use button and button to change the LED brightness for refractive power measurement to an appropriate brightness.
  • Page 89 88 HRK-9000A User Manual -------------------------------------- It is possible to save up to two images for the left and right eyes when it comes to the images saved by using measurement button. 9.3.4.4. Test for other eye Saves the desired image for other eye as well.
  • Page 90 ------------------------------------- HRK-9000A User Manual 89 ① Press on the button to go into the Display mode in order to indicate the saved Retro-illumination image for the two eyes on the monitor screen once again. ② In the Display mode, each saved image is indicated on the screen and it is possible to indicate by amplifying the image when you touch a desired image.

  • Page 91: Tfbut Measurement Mode (Tear Film Break-Up Time)

    90 HRK-9000A User Manual -------------------------------------- 9.3.4.6. Returning to the main measurement mode It is possible to return to the main measurement mode if you press on the button while at the observation screen. 9.3.5 TFBUT measurement mode (Tear film break-up time) This is the mode for measuring the time required until the dry part of the cornea’s...
  • Page 92 ------------------------------------- HRK-9000A User Manual 91 [Figure 9-3-5-1. TFBUT measurement screen (1)] [Figure 9-3-5-2. TFBUT measurement screen (2)] Use fluorescence solution to dye test subject’s eyes. Adjusts eye height and focus to facilitate observation. 4. Have a test subject blink the eyes two or three times and have the subject stop...

  • Page 93: Meibography Mode

    92 HRK-9000A User Manual -------------------------------------- 5. Start measuring time by pressing on the measurement button the moment test subject blinks the eyes for the last time. 6. Stop the time by pressing on the measurement button when the dry part starts the device while observing tear film of the cornea, dyed with fluorescence solution.

  • Page 94: Filming Result Selection Screen

    ------------------------------------- HRK-9000A User Manual 93 : Button for modifying to the upper eyelid filming mode : Button for modifying to the lower eyelid filming mode : Button for indicating and analyzing filmed image ① The following MEIBOGRYPHY MODE screen appears when Meibo button is pressed on after pressing on the button in the measurement mode.

  • Page 95: Meibomian Gland Emphasis And Analysis Result Screen

    94 HRK-9000A User Manual -------------------------------------- [Figure 9-3-6-2. Meibography filming result selection screen] Categories of the buttons that are indicated on the screen are as follows. UPPER/LOWER: Indicates the direction of the eyelids where filmed meibomian gland is located. (Analyzer): Analyzes filmed image, emphasizes only the part that applies to the meibomian gland among the eyelid domain and carries out the function of indicating analysis result on the screen.
  • Page 96 ------------------------------------- HRK-9000A User Manual 95 [Figure 9-3-7-3. Meibography View mode –emphasis and analysis result screen] 1. Only the part that applies to the meibomian gland in the filmed image appears bright after getting emphasized. 2. Analyzes degree of damage to the meibomian gland and indicates the result by adjusting eyelids’...
  • Page 97 96 HRK-9000A User Manual -------------------------------------- : Selected point is moved down. : Selects all the points. : Indicates the degree of damage to the meibomian gland with the eyelid domain as the basis.

  • Page 98: Display Mode

    ------------------------------------- HRK-9000A User Manual 97 9.3.7. DISPLAY mode It is possible to see the measurement results that are saved in the memory (up to 10 for the left and right eyes). The mode changes into the DISPLAY mode when the DISP button is pressed on after pressing on the button at the main measurement mode.
  • Page 99 98 HRK-9000A User Manual -------------------------------------- [Figure 9-10-1. Refractometry measurement result] 2. Keratometry, Keratometry-p, CLBC measurement result - Indicates the latest 10 measurement results (cornea curvature value). Press on the button to delete saved DATA and to return to the measurement mode.
  • Page 100 ------------------------------------- HRK-9000A User Manual 99 [Figure 9-10-2. Keratometry, Ker-p, Clbc measurement result]...

  • Page 101: User Setup Mode

    100 HRK-9000A User Manual -------------------------------------- 9.4. User SETUP mode It is possible to adjust various setups related to the measurement, printer output and others. You can go into the user SETUP mode by pressing on the (SETUP MODE) button in the main measurement screen. User SETUP mode is comprised of two pages, and each page gets classified into various tabs once again.
  • Page 102 ------------------------------------- HRK-9000A User Manual 101 [Figure 9-4-1. Setup mode information (page 1/2)] [Contents of the category]: 1/2 Page 1. REF (cornea measurement) VD (0.0/12.0/13.5/15.0) : Distance between corneal apex and corrective lens CYLINDER (-/+/Mix) : Astigmatism marking form RER-STEP (0.01/0.12/0.25)
  • Page 103 102 HRK-9000A User Manual -------------------------------------- KER (curve measurement) mm/D (mm/D/AVG) : cornea measurement의 marking form R1 ·················· major axis radius R2 ·················· minor axis radius AX ·················· major axis’s angle K1 ·················· minimum cornea refractive power K2 ·················· maximum cornea refractive power ··················...
  • Page 104 ------------------------------------- HRK-9000A User Manual 103 arrangement and focus are correct ON (3) Measure three times in a row ON (5) Measure five times in a row ON (A) Continue to measure OFF automatic measurement function is not used AUTO TRACKING (Off/On) : Select whether to use automatic tracking function or not 5.
  • Page 105 104 HRK-9000A User Manual -------------------------------------- RER-PRINT (Off/Std/Avg): Built-in printer output form for the Refractometry measurement result Off: Did not get output. Std: Outputs only the most recent 10 measurement results and average values. Avg: Outputs only the average value. KER-PRINT (Off/Std/Avg): Built-in printer output form for Keratometry...
  • Page 106 ------------------------------------- HRK-9000A User Manual 105 MSG: text input [Figure 9-4-2. Setup mode information (page 2/2)] [Contents of the category]: 2/2 Page 8. DATE & TIME DISPLAY (YMD/MDY/DMY): year/month/day marking form setting YMD: year/month/day MDY: month/day/year DMY: day/month/year DATE: Modification of the setting for date (year/month/day)
  • Page 107 106 HRK-9000A User Manual -------------------------------------- TIME: modify setting for time (hour/minute/second) (Scope: H = 00 ~ 23, M = 00 ~ 59, S = 00 ~ 59) 9. VIRTUAL COMPARISON NEAR (30/40/50/60): Selects near eyesight’s measurement location. ADD (0.00): Inputs near eyesight’s power.
  • Page 108 ------------------------------------- HRK-9000A User Manual 107 TRANSFER TYPE (Auto/Manual): setting for the transmission method when transmitting data. Auto: Method for transmitting all the data with phoroptor that was selected for use without asking the user. Manual: Method that transmits data with the user selecting the desired...

  • Page 109: Input Method

    108 HRK-9000A User Manual -------------------------------------- 9.6. Input method [Figure 9-4-3. other (text) input] [Text input] : Converts capital letter/small letter input mode. : Deletes all the input texts. : (Back Space) deletes only one letter in front of the cursor.
  • Page 110 ------------------------------------- HRK-9000A User Manual 109 [Figure 9-4-4. other (number) input] [Number input] Range: Minimum ~ maximum scope that can be input (Does not get saved when the scope is deviated from, and the warning message, “Out of Range!” appears.) : Deletes the last number.

  • Page 111: Power Saving Function

    110 HRK-9000A User Manual -------------------------------------- 9.5. Power saving function Power-saving function gets activated when you do not operate any function during three minutes (default). The mode returns to the measurement mode when you press on any button or touch the screen during the power-saving mode. It is possible to modify the power-saving time when you select the “SLEEP MODE”...

  • Page 112: Self-Diagnosis And Maintenance/Repair

    ------------------------------------- HRK-9000A User Manual 111 10. Self-diagnosis and maintenance/repair 10.1 Prior to calling a serviceman Warning appears on the screen when there is a problem or when this device malfunctions. Take the following measures in case of the following. Contact a sales distributor after turning off the power when the device does not resume normal operation even after taking the following measures.
  • Page 113 112 HRK-9000A User Manual -------------------------------------- ② Message during measurement Message Root causes Measures Refer to Page 15 Refer to Page 15 TRY AGAIN Contamination of the object lens on Clean object the measurement screen lens Spherical prescription of the eye for...
  • Page 114 ------------------------------------- HRK-9000A User Manual 113 ③ Message when printing Message Root causes Measures There is no printer page or the Add on printer page or close CHECK PAPER lever is not shut. the lever.

  • Page 115: Replacing

    114 HRK-9000A User Manual -------------------------------------- 10.2. Replacing 10.2.1. Printer page Replace the paper for the printer immediately when red line appears on the paper. ① Open the cover by pressing on the button located next to the printer. ② Cut the paper that is stuck in the printer and take out the paper roll to the outside.

  • Page 116: Slip Page

    ------------------------------------- HRK-9000A User Manual 115 10.2.2. Slip page ① Take out two pins from the chin rest. ② Push in the pin into the hole that is found on the slip page. It is possible to mount over 50 pages.

  • Page 117: Equipment Cleansing

    116 HRK-9000A User Manual -------------------------------------- 10.3. Equipment cleansing ① Equipment needs to be maintained clean, and do not use material with strong volatility, thinner and benzene. ② Clean each part after wetting a soft cloth slightly with soap water and after squeezing out the moisture.
  • Page 118 ------------------------------------- HRK-9000A User Manual 117 ④ Move while maintaining horizontal balance while holding the lower part of the main body.

  • Page 119: Information Needed For Servicing

    118 HRK-9000A User Manual -------------------------------------- 11. Information needed for servicing Repair: Contact the Huvitz’s distributor after preparing the information on the following matters when the problem is not resolved even after taking the measures described on Page 10. equipment name: HRK-9000A equipment’s serial number: number on the name plate that is...
  • Page 120 ------------------------------------- HRK-9000A User Manual 119 Contact the Huvitz’s service department directly by referring to the address and telephone numbers below if you cannot contact the distributor where you purchased the product. Huvitz Co., Ltd. contact numbers address : (HQs) Huvitz Co., Ltd.

  • Page 121: Key Specs

    120 HRK-9000A User Manual -------------------------------------- 12. Key specs Measurement mode Cornea/curve continuous measurement (K/R mode) Curve measurement (REF mode)，cornea measurement (KER mode) Cornea periphery measurement (KER-P mode) Contact lens’ base curve measurement (CLBC mode) Curve measurement Distance between 0.0, 12, 13.5, 15.0...
  • Page 122 ------------------------------------- HRK-9000A User Manual 121 measurement unit: 25.96D~67.50D (cornea Cornea refractive equivalence’s refractive power: 1.3375) power indication unit: 0.05/0.12/0.25D unit Cornea astigmatism 0.0 ~ -15.00 D prescription (Increments: 0.05/0.12/0.25 D) Cornea astigmatism 0 ~ 180˚ (1˚ unit) axis angle Cornea diameter 2.0 ~ 14.0 mm (0.1 mm unit)
  • Page 123 122 HRK-9000A User Manual -------------------------------------- Automatic tracking scope Up and down ± 5 mm Left and right ± 5 mm Front and back ± 5 mm Chin rest travel distance Up and down 60 mm (± 3 mm) Data memory...

  • Page 124: Accessories

    ------------------------------------- HRK-9000A User Manual 123 13. Accessories [Figure 13-1. Accessories] 1. Power cable (AC 220 V / 60 Hz power code, 1.5m)········································1 2. Model Eye············································································1 (SPH: –2.50D~-2.75D, CYL: -1.25D~-1.50D, R1: 7.95~8.00, R2: 7.78~7.83) 3. Slip page (100 pages)······························································· 1 page 4.

  • Page 125: Emc Information

    Manufacturer announcement – electromagnetic waves trouble Electromagnetic waves trouble HRK-9000A should be used in the below mentioned electromagnetic wave environment. HRK-9000A purchaser or user needs to confirm whether HRK-9000A is used in this type of environment. Trouble test Question of...
  • Page 126 Manufacturer announcement – electromagnetic waves tolerance electromagnetic waves tolerance HRK-9000A is to be used in the below designated electromagnetic wave environment. HRK-9000A customer and user need to guarantee that the HRK-9000A will be used in this type of environment. Tolerance test...
  • Page 127 126 HRK-9000A User Manual -------------------------------------- Electromagnetic waves tolerance HRK-9000A is to be used in the below mentioned electromagnetic wave environment. HRK-9000A purchaser or user needs to confirm whether HRK-9000A is sued at this environment. Tolerance test IEC 60601 Appropriateness Electromagnetic wave...
  • Page 128 HRK-9000A The HRK-9000A is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the HRK-9000A can help prevent electromagnetic interference by maintaining a minimum distance between...
  • Page 129 128 HRK-9000A User Manual -------------------------------------- the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. Note 1: At 80 MHz and 800 MHz, the separation distance of the higher frequency range applies.
  • Page 130 ------------------------------------- HRK-9000A User Manual 129 Electromagnetic waves tolerance HRK-9000A is to be used at the electromagnetic wave environment designated below. HRK-9000A customer and user need to guarantee that the HRK-9000A will be used at this environment. Tolerance test IEC 60601...
  • Page 131 RF transmitter, field inspection is required. If the electric intensity used by the HRK-9000A that is measured at the outside of the shielded location exceeds 3 V/m, then it is necessary to observe and verify whether HRK-9000A operates normally.

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